It is normal for oil pressure to drop with RPM
,,also with engine reaching operating temperature.
Oil Pressure is a measurement of resistance of the oil flow,,NOT the Flow itself.
You can be getting great flow and low pressure and it wont mean a thing.
On the other hand,,if your oil pressure is low all the time, then its an indication of worn Bearings etc,,and time for a rebuild
Originally Posted by Streetcar
Hi all. The oil pressure on my Volvo Penta
TMD 31B drops as I back off the revs. The pressure drops to about 50% of that at 2000 rpm when I back the throttle to idle. Is this indicative of a problem, or normal oil pressure response to slowing the engine down?